CN101203374B - Process for producing a substantially shell-shaped component - Google Patents
Process for producing a substantially shell-shaped component Download PDFInfo
- Publication number
- CN101203374B CN101203374B CN2006800217411A CN200680021741A CN101203374B CN 101203374 B CN101203374 B CN 101203374B CN 2006800217411 A CN2006800217411 A CN 2006800217411A CN 200680021741 A CN200680021741 A CN 200680021741A CN 101203374 B CN101203374 B CN 101203374B
- Authority
- CN
- China
- Prior art keywords
- shell
- reinforcing element
- stiffener
- technology
- carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/12—Construction or attachment of skin panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3076—Aircrafts
- B29L2031/3082—Fuselages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3076—Aircrafts
- B29L2031/3085—Wings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Aviation & Aerospace Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a process for producing a substantially shell-shaped component, from substantially carbon-fiber-reinforced synthetic material having at least one local reinforcing zone (3) and at least one stiffening element, in particular a fuselage shell, a wing shell, a vertical stabilizer shell or horizontal stabilizer shell of an aircraft or the like. The process according to the invention comprises the following steps: arranging at least one doubler (1) which has already been cured, on an at most partially cured shell skin (2) to form the local reinforcing zone (3), applying at least one stiffening element which has already been cured, and placing at least one at most partially cured connecting angle bracket (6) against the at least one stiffening element at least in the region of the at least one doubler (1), and curing the shell skin (2) and the connecting angle bracket (6). The invention also includes a substantially shell-shaped component having at least one local reinforcing zone (3) and having at least one stiffening element produced by the process according to the invention.
Description
Technical field
The present invention relates to a kind of technology that is used to adopt carbon fiber to strengthen the substantially shell-shaped parts of synthetic material production with at least one local enhancement region and at least one reinforcing element.Especially, the present invention relates to a kind of technology that is used to produce aircraft and other fuselage cover, wing shell, horizontal or vertical stabilization.
Background technology
Yet the present invention can be used for any required form of producd fibers composite construction on principle, and described structure has at least one and strengthens element and need at least one to be used for the local enhancement region that local load introduces the zone.
Known ground, the shell component of being strengthened by reinforcing element partly is provided with local reinforcement (hereinafter being called stiffener (doubler)), so that be absorbed in the top load density in the single part of modular construction and distribute these load on total.In this context, draw the difference between the inside and outside stiffener.
Inner stiffener is used for for example being provided with the inboard of the parts of reinforcing element, and therefore for the not influence of exterior contour of parts.In this case, reinforcing element must exceed (run over) stiffener, and promptly stiffener and reinforcing element are by upper and lower settings.
Yet the angle from technology realizes only can exceed stiffener with sizable expense.Although reinforcing element can be integrated and be illustrated in the complexity reason that takes place frequently in the manufacture process with the skew production of appropriateness usually.
As the possibility of the inside stiffener on the inboard, stiffener can be placed in the outside of parts.This has inboard complex inner structure (strengthening element, post beam, rib etc.), can not produce adverse influence.Yet the outside no longer has required profile, and this has negative influence to for example aeronautical dynamics under the Flight Vehicle Structure situation.
In addition, the use of external reinforcing plate relates to a plurality of manufacturing defect.If stiffener is integrated in the manufacturing installation, then must adjust accordingly manufacturing installation for any change of stiffener.
Summary of the invention
The object of the present invention is to provide a kind of simplification to have the technology of production of the substantially shell-shaped parts of at least one local enhancement region and at least one reinforcing element, described local enhancement region is set up towards inboard (towards stringer sides), in described technology, the defective of knowing from prior art can not occur.
This purpose is used to adopt the carbon fiber with at least one local enhancement region and at least one reinforcing element to strengthen the technology that synthetic material is produced substantially shell-shaped parts by according to claim 1, and described technology may further comprise the steps:
On the shell skin of maximum partly solidified mistakes, settle at least one stiffener of overcuring, to form local enhancement region;
Use at least one reinforcing element through overcuring; And
To in the zone of at least one stiffener, settle at least through relative at least one reinforcing element of at least one partly solidified angle cleat at most; And
Solidify shell skin and angle cleat carriage.
Carried out accurately machined stiffener, be positioned in the shell skin or the skin laminate (laminate) that need the locational uncured that stiffener strengthens through overcuring.In this case, stiffener can be produced with manufacturing process and the material that is different from skin laminate, and is applied to shell skin then.Follow thereafter be by through the reinforcing element of overcuring or longeron and under this state the angle cleat carriage of ductile and flexible uncured.Final step is to solidify, so that finish the substantially shell-shaped parts that are provided with reinforcing element and enhancement region.
Technology according to the present invention has a plurality of advantages:
● in a cure cycle, make complicated large-sized shell component;
● the favorable mechanical performance of shell component;
● change (under the situation of the processing geometry that does not influence housing and longeron, influencing the size of stiffener) and slope angle etc. for the geometry of stiffener, any load and have higher flexibility;
● stiffener is made independently, and the technology that causes laying shell skin does not slow down because of little reinforcement;
● the stiffener through overcuring can be made and/or process in very narrow tolerance, and the thickness deviation that will have the zone of bigger material thickness is reduced to the thickness deviation of shell skin or skin laminate;
● the independent stiffener of making can adopt the material of any in fact needs and the combination of laminate structures to carry out preprocessing, and can process independently and test before install.This allows to relate to overall shell component to be reduced, especially under the situation of big wall thickness.
Be preferably provided at least one reinforcing element in the zone of at least one stiffener before being applied on the shell skin with the profile phase coupling of at least one stiffener.For this purpose, reinforcing element for example can be provided with the groove that is used to hold stiffener.The coupling of profile can realize by processing (for example mill, mill, laser cutting and other).
Reinforcing element can be the shape of any appropriate on principle.Yet, in a preferred embodiment, reinforcing element adopts the enhancement mode profiled-cross-section to form, especially, T profiled-cross-section (profiled section), double T profiled-cross-section, L profiled-cross-section, Z profiled-cross-section, rectangle profiled-cross-section and other, so that stability is high especially, can be and strengthen element as the material of making by measuring instrument, with the low cost manufacturing, the section bar that is crushed to is cut into Len req by extrusion modling etc.
According to another embodiment, shell skin, at least one reinforcing element, at least one stiffener and/or at least one angle cleat carriage adopt fiber-reinforced composite material to make, and especially adopt the carbon fibre reinforcement by curable epoxy resin preimpregnation.As this so-called preimpregnation material of the carbon fiber enhancing platy structure that soaks with curable epoxy resin, simplified production and reduced required time.
On principle, the curing of shell skin and at least one angle cleat carriage may occur in room temperature and atmospheric pressure takes place down.Yet, solidify in order to improve and to quicken, preferably, be used to produce the shell skin of final shell component and the effect that is solidificated in such pressure and temperature of at least one angle cleat carriage takes place down, especially in pressure cooker and other, carry out.This for example takes place under the pressure of temperature between 120 ℃ and 220 ℃ and 10 crust.
The present invention also comprises by the substantially shell-shaped parts with at least one local enhancement region and at least one reinforcing element according to explained hereafter of the present invention.
Description of drawings
The present invention makes an explanation with reference to the accompanying drawings at this, in described accompanying drawing:
Fig. 1 illustrates the first step of production technology;
Fig. 2 illustrates second step of production technology; And
Fig. 3 illustrates the third step of production technology.
Be labeled as Fig. 1 to Fig. 3.
The specific embodiment
Accompanying drawing illustrates the production of the shell component that is provided with the reinforcing element that forms longeron (stringer) 4, and the thickening that wherein is configured to stiffener 1 forms in enhancement region 3 to improve the introducing of load.In this case, adopt the semi-finished product of the product that is called preimpregnation material.Preimpregnation material is the carbon fiber enhancing platy structure with curable epoxy resin pre-preg.Alternatively, also can use curable polyester or BMI resin system for preimpregnation material.
At first, shell skin 2 for example adopts known " ATL " (tape laying automatically) technology to be laid in uncured state.ATL technology is the technology that is used for the automatic production of laminated material, in described technology, lays the one-way for example comprise carbon fiber etc. and lays fabric.
Be positioned on the uncured shell skin 3 in the position that will form enhancement region 3 through overcuring and accurately machined stiffener 1.In this case, stiffener 1 can use with other materials, laminate structures and manufacturing process.
In next step, be located on the shell skin 3 through the longeron 4 of overcuring.Longeron 4 is provided with groove 5 as reinforcing element, and described groove 5 is made by processing (for example mill, mill, laser cutting and other).This groove 5 is positioned at the locational this mode that longeron 4 exceeds stiffener 2 and hold the latter with it and is provided with and forms.Replace following the rise cross section that groove 5 does not provide Reference numeral, longeron 4 also can have bigger material thickness on the zone of stiffener 1, so that obtain required mechanical strength on this zone.
Therefore, longeron 4 can be applicable to almost any stiffener 1 profile no problemly, and also can be laid in the housing.
Then, in next step, may be by pretension be L profiled-cross-section and the base portion that roughly is laid on longeron 4 as angle cleat carriage 6 or the uncured laminated material that connects the angle steel carriage partly go up with stiffener 1 on.This L profiled-cross-section is supported by the web of the longeron 4 that has been cured.
Therefore, curing schedule does not need other supporting tool, has simplified manufacturing thus to a great extent.The structure of having described is packaged in traditional vacuum bag and is cured.Take place in this temperature between 120 ℃ and 180 ℃ and the pressure cooker of pressure up to 10 crust.
Reference numerals list
1 stiffener
2 shell skin
3 enhancement regions
4 longerons
5 grooves
6 angle cleat carriages
Claims (9)
1. technology that is used to produce substantially shell-shaped parts, described parts adopt substantially that carbon fiber strengthens synthetic material production, have at least one local enhancement region and at least one reinforcing element, and described technology comprises step:
At least one stiffener (1) that has cured is placed on the shell skin (2) of partly solidifying at most, to form local enhancement region (3);
Use the reinforcing element that at least one has cured; And
With pass through at most at least one partly solidified angle cleat carriage (6) relatively at least one reinforcing element in the zone of described at least one stiffener (1), place;
To be incorporated in the vacuum bag by the structure that shell skin (2), described at least one stiffener (1), at least one reinforcing element and at least one angle cleat carriage (6) constitute, described vacuum bag is moved into the pressure cooker that is used for solidifying, wherein each local enhancement region is formed by a stiffener, and uses a reinforcing element and an angle cleat carriage; And
Solidify shell skin (2) and angle cleat carriage (6) in temperature between 120 ℃ and 180 ℃ and the pressure cooker to make final shell component up to the pressure of 1 Megapascal.
2. technology according to claim 1 is characterized in that,
Described shell component is fuselage cover, wing shell, the horizontal or vertical stabilization shell of aircraft.
3. technology according to claim 1 is characterized in that,
At least one reinforcing element on the zone of described at least one stiffener (1) be applied to shell skin (2) go up before with the profile phase coupling of described at least one stiffener (1).
4. according to each described technology among the claim 1-3, it is characterized in that,
Described reinforcing element adopts and strengthens profiled-cross-section.
5. technology according to claim 4 is characterized in that,
Described reinforcing element utilizes the T profiled-cross-section to form.
6. technology according to claim 1 is characterized in that, shell skin (2), at least one reinforcing element, at least one stiffener (1) and/or at least one angle cleat carriage (6) roughly adopt fiber-reinforced composite material.
7. technology according to claim 6, it is characterized in that shell skin (2), at least one reinforcing element, at least one stiffener (1) and/or at least one angle cleat carriage (6) are made by the carbon fiber reinforced material that has with curable epoxy resin pre-preg.
8. shell component has at least one local enhancement region and at least one reinforcing element, by according to each the described technology manufacturing in the claim 1 to 7.
9. shell component according to claim 8 is characterized in that,
Described shell component is fuselage cover, wing shell, the horizontal or vertical stabilization shell of aircraft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005030939.9 | 2005-06-30 | ||
| DE102005030939A DE102005030939A1 (en) | 2005-06-30 | 2005-06-30 | Method for producing a substantially cup-shaped component |
| PCT/EP2006/006384 WO2007003372A1 (en) | 2005-06-30 | 2006-06-30 | Process for producing a substantially shell-shaped component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101203374A CN101203374A (en) | 2008-06-18 |
| CN101203374B true CN101203374B (en) | 2011-02-02 |
Family
ID=36950577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800217411A Expired - Fee Related CN101203374B (en) | 2005-06-30 | 2006-06-30 | Process for producing a substantially shell-shaped component |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8580170B2 (en) |
| EP (1) | EP1899149B1 (en) |
| JP (1) | JP2009500188A (en) |
| CN (1) | CN101203374B (en) |
| BR (1) | BRPI0613477A2 (en) |
| CA (1) | CA2611248A1 (en) |
| DE (2) | DE102005030939A1 (en) |
| RU (1) | RU2404059C2 (en) |
| WO (1) | WO2007003372A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391488B (en) * | 2008-08-22 | 2010-06-09 | 成都飞机工业（集团）有限责任公司 | Curing formation method for non-flat plate composite product and shaping mould |
| CN101870172B (en) * | 2010-06-09 | 2012-10-10 | 哈尔滨工业大学 | Preparation mould of carbon fiber composite material casing of airplane and aircraft and forming method thereof |
| CN101913250A (en) * | 2010-08-17 | 2010-12-15 | 沈阳飞机工业（集团）有限公司 | Rudder wall plate molding process |
| JP6403774B2 (en) * | 2013-08-09 | 2018-10-10 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Reinforced composite panel |
| EP3088152B1 (en) * | 2015-04-30 | 2020-04-15 | Airbus Operations, S.L. | Method for manufacturing composite parts and form |
| CN108995264B (en) * | 2018-05-28 | 2021-02-09 | 广西玉林华飞网络科技有限公司 | EPO (erythropoietin) unmanned aerial vehicle shell reinforcing method and reinforcing structure |
| CN108749028B (en) * | 2018-05-29 | 2019-10-08 | 沈阳飞机工业（集团）有限公司 | A kind of normal temperature cure high temperature resistant auxiliary mould material system and its manufacturing method |
| US11446884B2 (en) | 2018-10-29 | 2022-09-20 | Airbus Operations Gmbh | Process for producing a component which is two-dimensional in regions from a fibre composite material |
| CN110524915A (en) * | 2019-09-05 | 2019-12-03 | 航天特种材料及工艺技术研究所 | A kind of socket forming frock and socket forming method |
| GB2615755A (en) * | 2022-02-15 | 2023-08-23 | Airbus Operations Ltd | Fuel tank stringer with flow passage |
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- 2005-06-30 DE DE102005030939A patent/DE102005030939A1/en not_active Ceased
-
2006
- 2006-06-30 RU RU2007148546/05A patent/RU2404059C2/en not_active IP Right Cessation
- 2006-06-30 DE DE602006005052T patent/DE602006005052D1/en active Active
- 2006-06-30 EP EP06762316A patent/EP1899149B1/en not_active Expired - Fee Related
- 2006-06-30 CA CA002611248A patent/CA2611248A1/en not_active Abandoned
- 2006-06-30 BR BRPI0613477-7A patent/BRPI0613477A2/en not_active IP Right Cessation
- 2006-06-30 WO PCT/EP2006/006384 patent/WO2007003372A1/en active Application Filing
- 2006-06-30 CN CN2006800217411A patent/CN101203374B/en not_active Expired - Fee Related
- 2006-06-30 US US11/922,940 patent/US8580170B2/en active Active
- 2006-06-30 JP JP2008518742A patent/JP2009500188A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102005030939A1 (en) | 2007-01-04 |
| JP2009500188A (en) | 2009-01-08 |
| BRPI0613477A2 (en) | 2011-01-11 |
| EP1899149A1 (en) | 2008-03-19 |
| US20090115088A1 (en) | 2009-05-07 |
| RU2404059C2 (en) | 2010-11-20 |
| DE602006005052D1 (en) | 2009-03-19 |
| CN101203374A (en) | 2008-06-18 |
| CA2611248A1 (en) | 2007-01-11 |
| US8580170B2 (en) | 2013-11-12 |
| WO2007003372A1 (en) | 2007-01-11 |
| EP1899149B1 (en) | 2009-01-28 |
| RU2007148546A (en) | 2009-08-10 |
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